Extensible level



Jan. 20, 1931. slMQN .EXTENSIBLE LEVEL Filed Sept. 19, 1928 INVENTOR l' Fran/damen flex/Y ATTR'NEY" v llliIlIlIllIl \s Q m ww M RL, f l 1 l l aum mH l .m lfi u, N .w Hlm Nm.. QW O uw MIU IM HH .Y Patented Jan- 20, 1931Y I f l Il *Y e `l A, The invention relates toa level or lc linom- V@tion with the accompanying drawings,"'in 'o v eter `member whereby'theextent jthatfwan Whichgn o b]ect, upon whlch the level member rriaybe'v Fig: 1 isV affront elevation of the` novel placed, Vis out of leveljmay'jreadily.vbe'deter- Q level Amember 'withvscalef members extended Y f' f forjuse and :with the draWn-'Out-pOsitionpf-55 e Y f 'ljhe invention has `-for its ebjeet'a `device "its slidefindicated indotted lii1es`.'j Y

of this charcter Veap'ableof being adjusted` Fig, Q'isaplanthereof.'` .to the desiredllength, and wherein the' spirit- VQ Fgf?) isa frontfelevation o'fthejnovel level "level element Yemployed therein may be, corf We? Seelerlatesf'feldd- I f lre'spondingly adjusted A further'objectof Fig. 4 1s @fragmentary rear elevatiofnLf "-960 the invention resides inthe provision' of "`F}gS-`5` &Hd 09106116- eleVOIlSY-"Y" f ymeans for securingr the level extension-in ad- E 7/1S `2 J v e-IC/al SC01 taken. v011` the A'j usted position'f The invention hasfor a still lllle Fgl' ofthe drawings, andlooking further object the provision of a kvertically T111 the dlIjeClOpDf theu l'pWefY 15 adjustable spirit-level carryingjmember r Referring tothe mmHg-S lgldesgnatesr.. 65 .'wherebvthe level member may be, adjusted the bese 0r; b ody'portionfofthe" instrument foruse in setting an object at-apredetermined heYllg 115e 'UIIdeISUITfeCQ 1l lllshedxm IUG ,angle from the horizontal, las Well as toy de- Plane nald .the ,Sa-111915? depeed'ie: reet H POU` f terminethe departure of a surface from the ,the obl-eet* Whose leVe1`1S`t0` beidelmlnd,

" 20 horizontal. Further objects .of the' invon- 101 Corrected!" The vSeid bdv prtn iS @0H-*W y a 40 readilybemaintained .I tion relate to the provision o fa compact level etmleted, vPrefell'illbly, ,OWQ Side lPeCeS held member embodying the forefroingfeatures; eegehe'jbX the V enflsleps l2 and @ed In carryingoutthe invention, abodyr'memlemme en llltefmedllteepaee for'the Ifeeep ber with true horizontal undersurface ispr'oe101? Ofi e* greduated Sllfemember l5 {The c 2l vided, the same carrying a slidefmemberl letter-earn@ emetelreerll? hevlng the-exceed 75 whioh-is extensible longitudinally-thoreof me Hnge porl'ons '01 toneuqeleetendme and provided with a scale plate extending at,4 leee'euy hefefem en OPPOSte Sldes 0f the right anglesfhoroto.- Tho body 'member 'Simi- Slldeenddeslened t0 ft Correspopfllng @haal- 1 larly carries a scale plate@y and between the., nel? 0.? grooves 1 7 0f thesde Pleeeefeenst' j 30 twolscale plates is provided a telescoping 4511151112 the b efy membe- Theehde 1S thus "Se support adapted to be `adjustablvsecured at .Seeu'ely Peeltlened m the latter. and me? be v` its ends to the respective scale members` said mellelly drewneutwedly teel'tend the ef 'telescoping member carrying; also-,fa spiritvfeelYe length 0f, ehe level es lndleeted 1n. the level'which mavfbelongitudinallv adinstable,V leesltolzshewnm detted ,hneei Flg-l efthem thereof. Means ,are pr0vided; furthermoe dawlgs: Y i, (u f th 85 Y for clampingr the elementsof the'..teleseoping` Apugld l8fffttdmg upbwarl. YUC rgm Y e member so that when the slide is; extended 11e-ner .en o .es l'emm er ums. y C911' c vbe 0nd th b. d m ber it .E Vtactevviththe strap 13 theextent to whlch y e o y e111 c 9 TS Pgs-1 1@ may, slidel5 may be drawn outwardly and thus also prevents its complete withdrawal fromeo In order to provide for a compact level i 'f Y 1 f Y b o `the body p ortlon l0, l mem er oofthls nature? ehe extendmg, scale f To theone endV of saidbodv portion there plates are arranged ffmPwopalimpuntmgsg, isalso attaehed in manner to project at right thatwhen thelevel is-notxin use the same `angles thereto a SC2-,1e plate 2O .havingv the l5 maybe folded eVeItO 11e .Sl-betentle-Hyjpe'* vertical slot'2i1j; and', similarly, therslide 15' v95 allel to the level body and thus materially has Seoul-d thereto@ :Scale plate having reduce the storage space required' for the .the vertical S1Qt 23 c The zero graduationsof leVelf 'Y these plates'when the latter arelocatedqat The nature of the invention, however, will rightlangles to the body portion liein a plane best be'understood when 'described in connecy parallel to the bottom surface 11;' and a tele lwe scoping support member 24 is designed Vto be adjustably secured or clamped at its opposite ends to 'the respective scale plates.. This may be accomplished, for example, by

7 clamping screws 25 and 26 passing through the outer Vand pointer-shaped ends v. of `the telescoping `elements and .extending as Well threeehthe reepeetve Slots. 2.1!e11el2e. of the scale plates. By this expedient, the telescoping member 24 may be positioned at any desired angle,.vvithin the' rangie-.2.0i'lithe..in-.q

strument, to the surface 11; andgsaidtelekscoping member is designed to carry afdou-e ble spirit-level element. dwhichfmay bead:

justable along said member as by clampingV fthffeeme theretefbrmeereof e Yeleoflnne 'screw Y31.

.When the slide-l 5.. has-been drawii ..oiit t0 Y theeleelfed extent; its. poeton einer be. ee- .eured by leekiee. the.. teleeeerlle nor-tiens of the member24, for-.examplmbymeans of the clamp 32 litted over the split .outerepd oi the tubular rertionfoe teleeeopeememberln order to provide -or.oornpaotness of thelevel. as in storing thesame when not in use or inthe.k transportation ottheselevels, the scaleplatesZOand 22thereo1t are not conneetedkdireotly lto. the Abody portion l0 .fa;111d

' slide 15 but ratherare pivoted to. brackets .and .34 rigidly.. attached., .theretdthe, clampingfsorewsQ and26 serving to link the tele- .scoping -elements, tothe respective.. plates.

.It `will be .understood that when. the .level .is use, theseclampswill bejtightand that inwardly.- over the top sur-ace. ofthe body when the .platesaare to.V beeturned..d. otvn and portion the saidolannps,are --to--be-suitably loosened, as by VTmanually. .unscrevving the same; v

Furthermore,- in order. to. x.. the Ielevated .position and accommodate this lower-ingametion., the lotverand. inner edges ofez tc li .o.f=` the scale. platesl are partly cut` away Ato an .arcuate perimeter, the respect-ive..'straightvvay por- .tions 3 5V and 36 of the bottom@edges-`A insuring Y theraised location. By vmeans .of the...arrange1nent -hereinbefore describe.d, .the.level may notlonly. be, ex-

tended doiiblethe length of the vlondy. portion, but, when not in use,'may be reducedto. a .compact size, .convenientforstorage; or shipment .Suitable graduations andl38-are falso. provided respectively `u ponthe body rportion l0V and theslide lthereof toyeX- .peditesettingthe level to the desired length.

Furthermore, by settingone, of the endsof the. telescoping Ymember 24 to the vzero-position-,the amount ,that an object-on Yvvhich l .saidlevet isplace-d. is ont of level may readily 1 be determined by. shifting. the opposite end of said, telescoping member` until the bubble of the spirit-level B Ois centrallylocated, as isA .Wellg understood, [and then. readingthe position on the correspondingscale plate.

f PreveeI-Lheseleo been mede. ier-utilizing the level in plumb measurements in that transverse spirit-level elements 40 areprovided `With the spirit-level 30 and an adjustable scale plate 41 is movably mounted in the end` of'. the body portion opposite its slide. end-nto be manually moved to measure the particular setting. rl `.his plateorslide 41 is, for example, frictionallyheld to the end by a slottedcover plate 42, an actuating pin 43 being attached to the slide plate and projecting-outwardly through the slot 44 of the cover plate for manual operation of said slide plate.'

. A-ne-Xtensible Spirit-devel, .comprising an elongated. body portion, slideY member mounted therein. iormovement longitudinally. thereof, plate carried bythe. .body

portion ende. eeelefnlate carried. by. the

'slide .memben a teleeeopilig .support Comprising two .eloneeteeltubillar members one-.b eingof Smaller die-meter. than. the. .otherY and s lrlahle therein-Ineens. torediustably 'Securing .the tree enfleof the tubular members/to the Scale .pleteeiaepirtflevel Carried-levend Support, and. means' to damn-the.tubulelfmelbere 0f [the tendering-Support to each other.

An -extensible spirit-level, comprising anpelongatedbody portion, a slide member mountedV therein for movementlongitudinal- .lyL thereof, a. scale plate carried bythe body portion anda sca-leplate carriedlby'theslide member, a ltelescoping support V'cfomprising two elongated tubiilar members, o'r`1ej being of smallen diameter' than-the other and slidable therein, means foradjustably securing, the

r'ee ends of, thetubular"y members to-the scale plates, a spirit-level mounted upon said' supportand means to' adjustablysecure said spirit-levelto thesupport.-

4. Anv `extensible spiritan elongated body portion, a' slide member mounted .therein for movement longitudinalmembenvsaidescale plates .being provided .with slotslnormally at y right. angles. to Ithe .undersurfaoefothe bodyportioma telescopi ing supp ort comprising-two. elongated; tubu- ...le-r .111e1rib.e1:s,. one beingof .Smaller diameter level, comprising .120 ly thereof, a scale. plate .carriedbythebody i Kportion and-a. scalepl-ate carried bythe-.slide than the other and slidable therein, clamping Serene.. ederted teseeureftheree endso the gehele-.1.'memberstoftheseelepletes.andfitting.

through the respective slots thereof, anda i vspirit-level carried by said support. Y

5. An eXtensible spirit-level, comprising an elongated body portion, a slide member mounted thereinfor movement longitudinally thereof, a scale plate pivotally carried by the body portion Vand a scale plate pivotally carried by the slidel member, means to secure' said scale plates in a position atrightangles Y .m to the body portion and including a, te1e scoping support comprising two VVelongated tubular members, one being of smaller diam- Y eter than the other and slidable therein, Y

means for adjustably .securing the free ends of the tubularY members tothe scale plates, and a spirit-level carried by the said support. In testimony whereof Iax my signature.

v FRANK SIMON. 

